2-Oxomalonic acid 2-Oxomalonsaeure 3-03-00-01355 (Beilstein Handbook Reference) 473-90-5 BRN 1754123 CCRIS 1453 EINECS 207-473-4 Ketomalonic acid MESOXALIC ACID Mesoxalate Oxomalonic acid Oxopropanedioic acid Propanedioic acid, oxo- (9CI)